Cultivator.



No. 834,650. PATENTED 00130, 1906.

F. WOLF.

OULTIVATOR. APPLIOATION I ILED APR. 11, 1906.

2 SHEETS-SHEET 1.

WITNESSES: 1

INVENTOR .l r 'aflk' B 4 PATENTED OCT. 30, 1906. F. WOLF.

GULTIVATOR. APPLICATION FILED APR. 11, 1966.

2 SHEETS-SHEET 2.

UNITED STATES PATENT oFEIo'E."

FRANK WOLF, OF CLAGKAMAS, OREGON.

CULTIVATQR- ful Improvements in Cultivators; and I do hereby declare the following to be a full, clear, and exact description of the-invention,

' such as will enable others skilled in the art to which it appertains to make and use the same. 1

My invention relates to new and useful imrovements in cultivators, and more particuarly to that class known as hand-cultivators, wherein a frame is mounted upon wheels and provided with a handle to propel the samethe frame having rotatable dlsks mounted thereon.

The object a device of this character which can be easily and readily operated and one which is cheap in construction.

A further object is to provide interchangeable devices whereby the earthzcan be moved to or from a iven row r- A still furt er object is to provide re lating means whereby the depth to whic the disks enter into the ground may be changed.

Other ob'ects and advantages will be hereinafter ma e clearly apparent in the specification and pointed out in the claims.

In the accom anyingl drawin s, which are made apartof t 's a p 'cation, have shown the preferred form 0 my invention.

In said drawings, Figure 1 is a side elevation of my improved device. 1 Fig. 2 is'a top plan view thereof with parts thereof broken away, showing the'cutting-blades arranged to throw the earth toward the growing plants. vice, showing the bla es arranged to throw the earth "awayfrom the growing plants. Fig 4 is an enlarged detail 'sectiona view as seen fromthe dotted line 4 4, Fig.3. 5

is a detail sectional view as seenfrom the dotted 1ine,'5 5,? Fig. 4; and Fig; 6 is-a detail sectional-view, on an enlarged scale, showing the bearing for the oppositeend of the shaft from 'that'shown in' Figs. 4 and 5.-

Referring to the fi res b'yt numerals of reference, 1 indicates tT said ame comprisin elongated side walls 2 and end walls; an 5, andacentral'bar6.

The wall "2 has'secured thereto forwardly and upwardl projectin arms 7, said arms .having whee s-'8 p iv ota ly secured thereto.

Specification of Letters Patent Application filed p i 906. Serial No. 811,100-

of my invention is to provide Fig.3 is a to planview of the de-.

e frame of my device,.,

Patentedbct; so, 1906 and have mounted thereon one end of the controllinghandles 10, said handles ex= The shafts 9, connecting said arms and wheels, project beyond the edge of said arms tending rearwardly across theframe 1 and terminating in curved hand engaging memhere 11 at their rear ends. Bars 12 are securedto the side wall 3 and extend upwardly through the'controlling-handles ,10 and are adjustably secured thereto by means of adjusting-nuts 13 and 14, takin onto the threaded ends of said bars 12. e-wall 3 is also provided with rearwardly-extending arms 15, betweenthe outer ends of which are rotatabl -mountedv guiding-wheels 16 said wheels b eing preferably wedge-shaped,

or. sharpened around their outer eriphery,

- formed, (preferably, integral therewith, while at'the opposite end is provided with a threaded socket, into which take 7 the threaded end of the shaft.

the hea Secured to the bar 6 and slidably mounted thereon is a bearing 20, said bearing. bein composed of sections and provided wit sockets 21, into'which take the'balls 19 at one end of the shafts 17 and 18, the sockets 21 being larger in circumference than the.

heads 19 and forming a race therearound, in which are placed a lurality of balls 22,-

against whichthe hea s 19 bear. The upper section of the bearing 20 is provided wit channel 23, in whichtis seated the bar 6, said bar havin an..- elongated slot 24 therein through w ich take clampin -bolts .25, said clampmg-bolts pas throu'g both sections I :25 through aclani'ping-i of the bearing 20 plate 26, laced over the top ofthebar6.

he mout 27 of the sockets 21 are flared .to permit the shafts 17 and 18 to be-moved 0 t e shafts17 and 18 are provided with'bear ings 28 and29, respectweli, said bearings also being provided withsoc ets 21' and havings balls 22 itherein, said bearings composed-- of twomembers and secured to..-

lpposite directions. The opposite -end's' 'of' ether by means of bolts 30, as best shown in ig. 6 of the drawings. The bearings 28 and 29 are secured to the end-walls 4and 5, respectively, by means of stud-bolts 31, said IIO ,o enings 32 therein.

end walls 4 and 5 being each provided with two sets of holes 32 and 33, respectively, through which said bolts 31 are adapted to take. The object of having two sets of holes 32 and 33 is to provide means for locating the bearings 28 and 29 at either end of the end walls 4 and 5, res ectively, for a purpose to be hereinafter. set f zirth. In the drawings I have shown the shafts 17 and 18, provided with a plurality of blades or disks 34, said disks being varied in size; but it willbe understood that, if preferred, said disks may be of the same size throughout.

In Figs. 1 and 2-of the drawings the shafts are arranged so that the disks 34 will direct the earth toward the center of the machine when pushed forward, and when in this position the bearing 20 is placed at the forward end of the slot 24 in the bar 6 and the bearings 28 and 29 secured,respectively, to those ends of the end walls 4 and 5 having the openings 33 therein,

In Fig. 3 of the drawings '1 have shown'the shafts 17 and 18 reversed from the position shown in Figs. 1 and 2 and the disks so arranged'upon said shafts that by a forward movement of the machine the earth will be directed away from the growing plants, and this result is accomplished by moving the bearing 20 to the rear end of the slot 24 and placing the bearings 28 and 29, respectively, at that end of the walls 4 and 5 having the It will also be seen t at the disks 34 are reversed upon their res ective shafts. The class of disks herein s own are adapted more particularly to be used in cultivating small plants, it being readily understood that by placing the small disks next to the row containing the plants they will be dircctedbut ashort distance into the ground and therefore direct but a very small quantity of the soil toward the growing plants or away from them, as desired, while by having the larger disks disposed out into the center of the row the earth at this point will be entered to a greater depth. When, however, the plant has reached a state of maturity where the direction of more or less earth toward or away from the samewill not greatly affect it, the disks are preferably all of the same size. The depth to which the disks are directed into the earth is regulated throughthe'me dium of the bars 12 and adjustable nuts'13 and 14.

It will also be seen that, if desired, I the shafts 17 and 18 may be turned end for" I end, thereby obviating the necessity of changing the disks upon said shafts when it is desired to change the course of the earth toward or away from the plants. I have shown this construction as applied to a handcultivator; but the same may be used with equal success upon a larger machine, wherein it requires draftanimals to operate the same.

What I claim is 1. A cultivator of the classdescribed comrising a frame, bearings secured to said fiame, said bearings having sockets therein, shafts having heads thereon adapted to take into saidsockets, bearing-balls in said sockets and surrounding said heads, disks mounted upon said shafts, said bearings being movably secured to the frame to vary the position of said shafts and disks whereby the earth will be moved toward or away from the growing plants, guide members secured to said frame, and means to control the operation of said cultivator.

2. The herein-described cultivator comprising a frame, hearings secured to each end of said frame and being movably mounted thereon, a central hearing slidably mounted on said frame, all of said bearings having sockets therein, disk-carrying shafts having heads at the ends thereof, one of the heads on each of said shafts being removably secured thereto, means to secure said heads in said sockets, and guiding means for said frame and disks.

3. A cultivator comprising the combination with a frame having end and side walls and a slotted bar between the side walls," of shafts having heads at each end thereof, one of said heads being removable, disks removably secured to said shafts, a longitiulimillvmovable bearing mounted upon the slotted bar, 'said {bearing having sockets therein adapted to receivethe heads on the inner ends of said shafts, bearings for the outer ends of said shafts and adapted to be secured at different points on the end walls of the frame, said bearings being so arranged that the longitudinal direction of the shafts may be changed as desired.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses I FRANK. WOLF. witness'esgo A. MATHER,

WILLIS IMEL. 

